﻿ Year 9 Maths - Icknield Community College

# Year 9 Maths

Unit Content
Unit 1 Reasoning with Algebra

This unit, focused on reasoning with algebra, develops students' knowledge and skills in relation to straight line graphs, forming and solving equations, and testing conjectures.

Key skills developed:

• How to use a table of values
• How to find the gradient of a line
• How to find the y intercept of a line
• How to solve equations with unknowns on both sides
• How to solve equations and inequalities with brackets
• How to rearrange one-step formulae
• How to expand a pair of binomials
• How to test conjectures about number

Assessment: Students undertake self-assessment and receive verbal feedback from the teacher each lesson. Summative assessment takes place at the end of the unit. In addition, students complete twice-yearly summative assessments which assess their retention of several units.

Unit 2 Constructing in Two and Three Dimensions

Students learn to work with two- and three-dimensional shapes, and develop their understanding of constructions and congruency.

Key skills developed:

• How to find the surface area of cubes and cuboids
• How to recognise the plans and elevations of 3D shapes
• How to construct a perpendicular bisector
• How to construct an angle bisector
• How to identify congruent triangles

Assessment: Students undertake self-assessment and receive verbal feedback from the teacher each lesson. Summative assessment takes place at the end of the unit. In addition, students complete twice-yearly summative assessments which assess their retention of several units.

Unit 3 Reasoning with Number

In this unit, students deepen their understanding of number. They develop their knowledge and skills in working confidently with percentages and with money.

Key skills developed:

• How to solve problems with integers and decimals
• How to add and subtract fractions
• How to multiply fractions
• How to calculate percentage increases and decreases
• How to express change as a percentage
• How to solve problems with bills and bank statements
• How to calculate simple interest

Assessment: Students undertake self-assessment and receive verbal feedback from the teacher each lesson. Summative assessment takes place at the end of the unit. In addition, students complete twice-yearly summative assessments which assess their retention of several units.

Unit 4 Reasoning with Geometry

This unit focuses on deepening students' understanding of geometry. Student build their understanding of deduction, of rotation and translation, and of Pythagoras' Theorem.

Key skills developed:

• How to find angles within parallel lines and use chains of reasoning
• How to apply algebra to solve angle problems
• How to rotate shapes around a point
• How to translate points and shapes given a vector
• How to identify the hypotenuse of a right-angled triangle
• How to use Pythagoras' Theorem to find the missing sides of a right-angled triangle

Assessment: Students undertake self-assessment and receive verbal feedback from the teacher each lesson. Summative assessment takes place at the end of the unit. In addition, students complete twice-yearly summative assessments which assess their retention of several units.

Unit 5 Reasoning with Proportion

The fifth unit enables students to work in greater depth with the concept of proportion. Students learn about enlargement and similarity, about how to solve ratio and proportion problems, and about rates.

Key skills developed:

• How to enlarge a shape by a positive integer scale factor
• How to enlarge a shape by a positive integer scale factor, from a given point
• How to solve problems with direct proportion
• How to read a conversion graph

Assessment: Students undertake self-assessment and receive verbal feedback from the teacher each lesson. Summative assessment takes place at the end of the unit. In addition, students complete twice-yearly summative assessments which assess their retention of several units.

Unit 6 Representations and Revision

The final unit of Year 9 deepens students' understanding of probability. Students consolidate their understanding of algebraic representation and conclude the unit by revising their key learning.

Key skills developed:

• How to calculate single-event probabilities
• How to calculate relative frequency
• How to calculate expected outcomes
• How to represent inequalities on a number line

Assessment: Students undertake self-assessment and receive verbal feedback from the teacher each lesson. Summative assessment takes place at the end of the unit. In addition, students complete twice-yearly summative assessments which assess their retention of several units.